55512113 has 8 divisors (see below), whose sum is σ = 56509632. Its totient is φ = 54519696.

The previous prime is 55512077. The next prime is 55512137. The reversal of 55512113 is 31121555.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55512113 - 2¹⁶ = 55446577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55592113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25556 + ... + 27642.

It is an arithmetic number, because the mean of its divisors is an integer number (7063704).

Almost surely, 2^55512113 is an apocalyptic number.

It is an amenable number.

55512113 is a deficient number, since it is larger than the sum of its proper divisors (997519).

55512113 is a wasteful number, since it uses less digits than its factorization.

55512113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551.

The product of its digits is 750, while the sum is 23.

The square root of 55512113 is about 7450.6451398520. The cubic root of 55512113 is about 381.4719296246.

Adding to 55512113 its reverse (31121555), we get a palindrome (86633668).

The spelling of 55512113 in words is "fifty-five million, five hundred twelve thousand, one hundred thirteen".